03-19-2005, 06:04 PM
Join Date: Aug 2004
Location: Somewhere in the swamps of Jersey
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What model BB are you using?
For all except the 7100, locate and press the SYM (symbol) key and then select the U key.
For the 7100 models, you have to hit SHIFT SYM (on the left hand side of the keyboard) and press the ER key for the underscore.